Finding the Fourth Proportional to 330,306.72, 455,807.97 and 187,067.81
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Solution
The fourth proportional to 330,306.72, 455,807.97 and 187,067.81 is: 258,144.90
Step by Step Solution
- Step 1: Write the proportion equation
330,306.72 : 455,807.97 = 187,067.81 : x - Step 2: Convert to fraction form
330,306.72/455,807.97 = 187,067.81/x - Step 3: Cross multiply
330,306.72x = 455,807.97 × 187,067.81 - Step 4: Simplify right side
330,306.72x = 85,266,996,449.41 - Step 5: Solve for x
x = 85,266,996,449.41/330,306.72 - Step 6: Final answer
x = 258,144.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.